Assumption Quote by Brian Tracy
“Incorrect assumptions lie at the root of every failure. Have the courage to test your assumptions.”
About This Quote
Source Book: No Excuses! The Power of Self‑Discipline, 2010
Assumptions cause failure; testing them requires courage.
In simple terms: Assumptions lead to failure; test them.
Key Takeaway
Challenge your assumptions regularly.
Themes
critical thinking
growth
courage
Mood
analytical
determined
Type
self‑help
business
When to use this quote
- business strategy
- personal development
- scientific research
Key Concepts
cognitive bias
risk assessment
Questions to Reflect On
- What assumptions are you most hesitant to test?
- How can you safely experiment with them?
A Different Perspective
Testing assumptions can be time‑consuming.
![“We [MIT Smart Cities research group] try to identify the fundamental underlying design assumptions that everybody takes as a sort of given and unchallengeable when you think about solving these problems. And we try to challenge those assumptions.” quote by William J. Mitchell](https://sms4smile.com/quotes/img-quotes/a2b/william-j-mitchell-31611_assumption_we-mit-smart-cities-research-group-try-t_291234.jpg)
